单项选择题

He expressed concern that the ship might be in danger.

A. worry
B. difficulties
C. need
D. danger
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单项选择题
Some psychologists argue that the traditional idea spare the rod and spoil the child is not reasonable.
A. helpful
B. kind
C. sensible
D. effective
单项选择题
They have a far beaer yield than any other year.
A. expectation
B. soil
C. climate
D. harvest
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